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s Sheets-Sheet 3. C. FREDERICK 8v R. L. PLUMLEY. SEWING MACHINE.

- ta nted Dec. 29, 1896.

I (No Model.)

Inventor:

Witnesses.

At torney.

rx: mums PETERS co. vnamumd mammal. oc? vim (No Model.)

6 Sheets+Sheet 4. O. FREDERICK & R; L. PLUMLEY.

SEWING MACHINE.

N0. 573,969. 7 Patented Dec. 29, 1.896.

\fgezsfesi I I V InViZOrS Attorney.

v 6 Sheets-Sh9et 5 '0'. FREDERICK 89R. L. PLUMLEY.

(No Model.)

SEWING MAGHINE. No. 573,969.

Patentd Dec. 99, 1896.

Inventors 7 %Q At torney.

Witnesses.

m: norms PETERS co, PNOlO-UTMQ, WASHINGTON. o. c.

(No Model.)

6 SheetsSheet s. C. FREDERICK & R. L. PLUMLEY.

SEWING MACHINE. No. 573,969;

Patented Dec. 29, 1896.

Inventors I Attorney Witnesses. WM

UNITED STATES PATENT OFFICE.

CHRISTIAN FREDERICK AND RAYMOND L. PLUMLEY, OF WILMINGTON,

DELAIVARE, ASSIGNORS TO PANY, OF SAME PLACE.

TI'IE TRUMP BROTHERS MACHINE COM- SEWING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 573,969, dated December29, 1896.

Application filed May 29, 1896. Serial No. 593,544. (No model.) i

To all whom it may concern:

Be it known-that we, CHRISTIAN FREDERICK and RAYMOND L. PLUMLEY,citizens of the United States of America, residing in 'ilmington, in thecounty of New Castle, in the State of Delaware, have invented a certainnew and useful Improvement in Buttonhole- Sewing Machines, of which thefollowing is a true and exact description, reference being had to theaccompanying drawings, which form a part thereof.

Our invention relates to button hole-sewin g machines, and particularlyto machines of the class shown and described in the patent to lllillsand Moore, No. 439,595), of October 28,

The object of our invention is, in the first place, to provide animproved construction of mechanism for operating the lower needle or Wehave also improved the mechanism for applying tension during themovement of the sliding plate, and an important feature of ourimprovements is the provision of clutch mechanism whereby the machine isbrought to a standstill on the completion of its work with little or nojar and with the needles always in a fixed determined position, theposition of course being that which permits the with-- drawal of thework and the insertion of new work.

The nature of our improvements will be best understood as described inconnection with the drawings, in which they are illustrated inconnection with mechanism of the same general character as that shown inthe Mills and Moore machine hereinabove referred to, and we have omittedfrom the drawings many parts which are not immediately connected withour invention and which may be constructed either like the parts shownin the Mills and Moore machine or in any other convenient way.

In the drawings, Figure 1 is a side elevation of the machine, partly insection. Fig. 2 is a plan view of the machine on the section-line l 1 ofFig. 1', the parts below the bedplate of the machine being shown indotted lines. in a reversed position-thatis,'looking at the positionfrom the bottom or underneath the bed-plate. Fig. i is a plan view ofthe lefthand'end of the machine as shown in Fig. 2 with the plate Mremoved Fig. 5 is a plan view of the under or lower side of the slidingplate M. Fig. 6 is an end elevation of the machine on the section-line mm of Fig. 2. Fig. 7 is an end elevation of the righthand end of themachine as shown in Fig.2, only so much being shown as relates to thedriving-pulley and clutch mechanism. Fig. 8 is a perspective view of themechanism directly connected with the lower needle or looper.

, Fig. 9 is a perspective view of a portion of the clutch-actuatingmechanism. Fig.10isaplan view, and Fig. 11 a side elevation, of amodified form of mechanism for actuating the lower needle or looper.Fig. 12 is asectional View showing the friction-pin K and partsconnected therewith; and Fig. 13 is a sectional view of the adjustablestop-holder H showing the way in which it is secured to the adjustablescrew H.

A indicates the frame or bed-plate of the machine; B B B the standardand arm supporting. the upper. needle and mechanism for driving it.

C is the main driving-shaft of the machine, and, referring first to theclutch mechanism for driving this shaft, C is a disk firmly secured tothe shaft C and to one side of which is pivot-ally secured at C an arm Cwhich arm is pressed outward from the disk 0 by the action of a spring0*, which, in the construction shown, acts upon the outeror free end ofthe arm C indicates the extreme free end of the arm C the conformationof which should be such as to insure its engagement by the arm J, to behereinafter described.

C C are pins by which the arm C is connected to a disk C so as to insurethe tnrning of the disk with the arm C and the shaft Fig. 3 is a planview of the machine 0. The actual contact between the arm C and the diskC is preferably made by a the pulley normally coupled or engaged withthe shaft. The disengagementis effected by the movement of a shaft J.(See Figs. 2, 3, 7, and 9.) This shaft is secured in bearings on theframe of the machine so as to have a free oscillation thereunder, and tothe end of the shaft is secured a cam-arm J which, when the shaft .1 isturned so as to move it upward, clears the arm C but when the shaft J ismoved downward it carries the cam-ari'n J downward, so that as the arm Crevolves its end C will come in contact with the camsurface of the arm J",and be gradually pushed backward, compressing the spring 0' and ofcourse releasing the pressure exerted by the disk 0 on the side of thepulley C". \Ve also secure to the end of the shaft J a spring-buffer,against which the arm C comes in contact after the clutch has beensubstantially uncoupled, so as to arrest the motion of the shaft 0 in afixed and determined position. This spring-buffer in the constructionshown consists of a pin J secured in a cavity of a heel extension Jprojecting; laterally from the hub J from which extends the cam-arm Jand which is secured to the shaft J. A spring JQalso lying in theextension Jipresses the pin J outward, and the tension of this spring isregulated by means of the screwplug J, (these parts being best shown inFig.

7,) and in order to avoid any tendency to rebound or turn backward inthe shaft we form near the bottom of the cam-arm J a depression J intowhich the end of the arm 0 is forced by the spring C so that the arm isin effect locked between the spring-buffer and the shoulder on theoutside of this depression. In this way it will be .obvious we securethe .fixed and absolute stoppage of the machine in the desired position.

Jis a lever-arm projecting out substantially horizontal from the shaftJ,and between which and the bed-plate of the machine we place a spring,as indicated at J The action of this spring is to turn the shaft in thedirection which causes the arm J" to come into operative position withregard to the clutcharm C 3 indicating another lever-arm extending outfrom the shaft J, by which in the construction shown we effect themovement of the shaft J in the opposite direction to that in which it ismoved by the spring J and of course for the purpose of disengaging thearm J from the clutch and thus causing the clutch to come intooperation. In the construction shown the arm I of a lever I I restsagainst the lever J the arm I being pivotally connected with a slidingplate G to which plate motion is imparted by a lever G, pivoted at G andengaged by means of apin G with a slot G3 in the end of the plate G. Bymoving the lever G toward the right, as shown in Figs. 2 and 3, theclutch is caused to engage the driving-pulley and driving-shaft by themechanism which we have already described, while of course a movement ofthe lever G or of the plate G toward the left effects the disengagementof the clutch and the stoppage of the machine, and we may state that thespring J should be of such power as to effect this disengagement. andstoppage of the machine in the absence of some positive stop or lock toprevent the movement of the sliding plate Gr toward the left.

D is a gear-wheel secured on the drivingshaft C and communicating motionthrough the gears D D D to the shaft D,whieh shaft, through the disk Dand pin D, communicates motion to the reciprocating rod D to the lowerend of which is secured the needle D E is a cam the function of which isto impart a reciprocating movement to the raceblock, to which isattached the lower needle or looper. This cam, in our preferredconstruction,is secured to a counter-shaf t N, held in a bracket fromthe frame of the machine and receiving motion from the pinion on theshaft C, which engages with the pinion N on the counter-shaft N. Througha cam pin or roller E the cam E communicates motion to a lever E,pivoted at E and connected at its free end with the connecting-rod E",which in turn is pivotally connected to the race-block E This method ofdriving the race-block from the shaft C is much more direct anddecidedly more advantageous than the constructions which have heretoforebeen employed for a similar purpose.

The race-block moves in a curved raceway F, formed in the race-frame F.Raceframes of this character have heretofore been given a sidewiseoscillating movement, and this movement either may or may not beemployed in connection with our improvements. \Ve, however, have giventhe race-frame a reciprocating longitudinal movement, which materiallymodifies the movement of the lower needle or looper.

In our preferred construction one end of the race-frame (that to therighthand, as shown in Fig. 1) is secured by means of a screw F andpreferably a mortise F to a depending arm F which arm extends through aslot Win the bed-plate of the machine and is secured by a screw F to aslide F, which rests on flanges F F lying to each side of the slot F',the slot being of sufficient length to permit the desired reciprocatinglongitudinal movement of the race-frame, and this movement is impartedto the race-frame by a cam F secured to the driving-shaft O andconnecting through a pin or roller F on a slide F the slideways beingindicated at F and the race-frame being secured to the slide by means ofa screw F which, as shown in Figs. 1 and 3, passes through aright-angled lug F of the race-frame and through a downwardly-projectinglug of the slide F In the modifications of this mechanism shown in Figs.10 and 11 the longitudinal reciprocating motion is imparted to therace-frame F by the cam F the construction on the connecting parts beingsomewhat modified, but only in an obvious and easily-understood manner.In place of forming a slot in the bed-plate for the longitudinalmovement of the race-frame we provide in the construction shown in thesefigures a slot F formed in 'an extension of the race-frame itself, ascrew F passing through this slot and serving both as a pivot and as aconnection, securing'the race-frame to the base of a slide E, whichslide extends up through a slot in the bed-plate and is connected by ascrew F with a slide-plate F resting on the bed-plate, a cam pin orroller F engaging with a cam F serving to give the transversereciprocating movement to the race-frame and theparts connectedtherewith.

Returning now to the sliding plate G it will be observed that this plateis supported by screws G G, passing through slots G in the plate, whichpermit the necessary reciprocating movement. The plate is also pro videdwith an end G", which serves as a stop or abutment, the plate being cutaway or recessed, as indicated at G for the purpose of securing itsrelease at the proper time, as will be hereinafter described. The plateis also provided with a slot G the position and length of which areregulated by conditions which will best be understood in connection withthe description of other parts of the machine, and the motion of theplate G is communicated to the lever-arm I by a pivot connection,(indicated at G H is the adjusting-screw of the machine,

, provided with right and left screw-threads,

as indicated at H and H and .havin g a spring H operating to keep theadjusting-screw pushed outward in its normal position, this springacting against a head H which lies 011 the outside of the frame of themachine and by which the adjusting-screw can be pressed in when desired.

H is a stop holding clamp internally threaded and engaged withscrew-thread'I-l. It is also provided with a transverse slot or openingin which moves the latch-stop 11 H being a spring which normally acts topress the latch-stop outward, so that it will project over the edge ofthe slot M and H is a connecting-rod secured at one end to the end ofthe latch-stop H andhaving a bent end H which extends into the slot G, Hbeing a handle on the rod H 11 indicates the threaded clamp and lower orfixed stop, the clamp screwing on the threaded portion H of the adjusting-screw H, and the end of the stop H lying over the edge of theslot M formed through the bedplate of the machine.

H is a clamp secured so as to move longitudinally with the adjusting-screw H, and to retain a fixed position thereon irrespective ofthe change in position of the stops H and H This is effected in theconstruction shown by providing (see Fig. 13) the adj Listing-screw Hwith anannular slot H into which projects the edge H of a plate 11 whichextends through a slot 77, in the clamp H and is secured on the outsideof the clamp by one or more screws, as indicated at H The block H servesas a stop to prevent the outward movement of the adj usting-screw I-Ibeyond a determined point, and projecting beyond this clamp is an arm Harranged in such position with respect to the end G of the plate G as toengage and hold it in the position shown in Figs. 2 and 3, that is tosay, in the position it occupies when the driving-pulley and main shaftare coupled. Then the screw H is pressed in either by the action of theslide M or by the pressure of the operator against the head 11* of theadjusting-screw, thestop H is depressed below the end G of the slidingplate, and said plate is then enabled to move toward the left with theeffect of uncoupling the driving-pulley from the shaft through themechanism already described, and we will here state that the slot G inthe plate GH is so placed that when the plate G is drawn back to theposition shown in Fig. 3 it draws, by means of the rod H the latch-stopH back to theposition shown in Fig. 3, so that its end does not projectover the slot M The length of the slot G is such as to permit themovement of the rod 11 toward the right even when the plate G occupiesthe position farthest to the left, so that the operator, by taking holdof the handle H can at all times move the latch-stop H backward, so asto permit free movement of the slide M.

M is a sliding plate to which the rotatable table upon which the work isclamped is secured. This sliding plate rests upon guideways M M on topof the bed-plate of the machine, and is held in position by theoverlapping edges of plates M The plate M is not so broad as theguideways upon which it rests, and is free to move from side to sidethrough a short distance, being centered only by the adjustable plates MM, which per mit it to move from side to side on each side of saidplates, but hold it substantially in one position at the point at whichthese plates come in contact with it. The reciprocating movement isgiven to the plate M through a rack M, secured on its under side to thefree end M of a link or arm M pivotallyconnected to the plate M at M Therack M moves in a slot m in thebed-plate of the machine, the portion Mbeing cut through to permit the passage of the gear-wheel L, whichgearwheel isengaged by the gear L secured on 1 shaft L to which shaftare also secured ratchet-Wheels L and L one being of finer teeth thanthe other, and the two being adjustable along the shaft and secured inposition to bring either ratchet into play, as desired.

The ratchet-Wheel is directly actuated by the pawl L depending from theend of a lever Ltand held in contact with the ratchetteeth by a springL, acting against its buttend and in turn abutting a shoulder on thelever or arm L. This lever is secured to a shaft L and this shaft hasextending from it a lever-arm L connected by a connectingrod L with acam L on the shaft C. All of these parts above described in connectionwith the actuation of the sliding plate M are ofa constructiongei'ierally well known and therefore need not be further explained orillustrated. The one feature which is novel and which we desire to claimin this connection is the mode of attaching the rack M to the plate Mthrough a pivot-arm M that is to say, the arm pivoted both to the rackand to the sliding plate and arranged at a slight angle with the linewhich the rack occupies in place. This construction we have found toobviate a dilficulty which was met with when the rack was pivoted to theplate M directly, this difficulty consisting of a tendency to make thestitches on one side of the eye of the buttonhole closer than thestitches on the other side. By connecting the rack through the arm Marranged asshown and described, this difliculty is entirely overcome.

The rotating table (indicated at m) is held upon the plate M in theusual way androtated at a proper time by means of its teeth, (indicatedat M and upon which the rotating worm M (see Fig. 3) operates in awellknown manner. The rotatingtable is slotted at M" and the slideslotted at M to permit the necessarylongitudinal movement of the slideM, the button M extending up through this slot.

The bed-plate is provided with a transverse groove M, having an offset Mand the slide M is provided with a downwardly-extending pin M whichworks through this groove M, the offset giving the necessary side motionto the plate M at the proper time and in a familiar and well-knownmanner.

A transverse slot M is formed through the bed-plate, lying parallel andclose to the adj Listing-screw H and in such position that thespring-latch H projects over the edge of the slot except when drawnback, while the stationary stop H always extends over the edge of theslot. A downwardly-projecting lug M extends from the sliding plate Minto and through this slot M being in such a position as to en gage-andby positive and direct abutment with the stops H and H.

In operating our machine the adjustingserew H is turned so that theposition of the stops H and 1-1 will correctly gage the length of thebuttonhole to be made. The slide M is then moved outward, so that itsdownwardly-extending lug M will lie outside of the spring-latch H theconformation of the end of the latch being such that it will be pushedout of the way as the slide is moved outward. Then the goods beingarranged on the rotating-table and the hole cut in them, the slide ismoved by hand until the projeetion M comes in contact with the end ofthe spring-latch H At this time the adjusting screw H is pushed in, thestop H lying beneath the end of the plate G4 and againstthe edge,(indicated at G and of conrse it Willbe understood that the spring-latchH the plate G being in its position farthest to the left, will be heldby a spring H so that it will project overthe groove M The operator thenmoves the handle G- toward the right, as shown in Figs. 2 and 3, untilit occupies the position shown in these figures. This, of course,movesthe plate G to the right until its edge G releases its hold on thestop H permitting the adj Listing-screw to move ortward until arrestedby the abutment of the clamp 11 against the edge of the bed-plate. Themovement of the plate G draws back the spring-latch I1 in the manneralready deseribed,unti1 its edge ceases to engage the projection M. Themovement of the plate G, also acting on the lever-arms I and I andthrough the lever-arm I on the lever J and the parts connectedtherewith, as already described, causes the elutch to couple thedriving-pulley and driving-shaft and start the machine. The plate M isthen fed inward, the operation of sewing the buttonholes ensues,as-described in the Mills and Moore patent, already referred to, and theprojection M finally comes in contact with the plate I1, and, acting onthis plate, draws the adjustin g-serew II inward, carrying with it theplate H against which the end G of the plate G abuts, and when theinward motion of the adjusting-screw is suflicient to disengage the stopI1 and the end G of the sliding plate the action of the spring J is suchas to at once force the plate G toward the left and to disengage oruncouple the driving-pinion and driving-shaft, the machine being broughtto rest gradually and at the desired point by the action of the clutchand stop mechanism which we have already described.

K is a friction-pin, the upper end of which projects through one of theslide-rests M the pin being pressed upward by a spring K, which lies ina barrel K and is adjusted in tension by means of a screw-plug K. Theslot is formed through the walls of the barrel K, and a correspondingslot 70 is formed in the side of the plug or pin K K K is a bell-cranklever carrying at the end of its arm K a wedge or cam K so arranged thatas the lever is turned on its pivotal connection with the bedplate thecam will pass from a position outside of the slots 70 and [t to aposition lying within said slots,

erases the arrangement being such that as the cam and removes thepressure exerted by this pin on the under side of the slide M. Thespringpressure should be exerted on the slide M.

while the machine is in operation and should be removed from the slide'Mas soon as the machine stops, so as to permit the easy movement'of theslide M by hand to the position in which it receives a new buttonhole,and we impart the proper movement to effect this application and removalof frictional pressure by means of the arm I of the T-shaped lever I I 1which engages the free end of the arm K of the bell-crank lever K K. Itwill be observed that when the slide G4 is moved to the position shownin Figs. 2 and 3, in which the driving-pulley and shaft 0 are coupled,the movement of the arm I is such as to throw the cam K out toward theslots and 10 while the movement of the slide G to effect the release ofthe clutch draws the cam K into the slots and draws down thefriction-pin, rele'asing the slide M from its pressure.

Having now described our invention, what i we claim as new, and desireto secure by Letters Patent, is

1. In a buttonhole-sewing machine having stitch-forming mechanismsubstantially as specified, a race-frameas F having a curved racewayFformed in it, in combination with.

a race-block adapted to move in said raceway, mechanism forreciprocatingsaid raceblock in the curved raceway and mechanism adaptedas described to reciprocate the raceway itself substantially in theplane of movement of the race-block.

2. In a buttonhole-sewing machine having stitch-forming mechanismsubstantially as specified, a race-frame as F having a raceway F formedin it, in combination with a raceblock adapted to move in said raceway,mecha slide supported on the frame of the 1nachine adapted to supportthe race-frame and permit it to move longitudinally andsubstantially inthe plane of the movement of the race-block as specified, mechanism ascam F adapted to impart such longitudinal movement to the race-frame, arace'block as E and mechanism for reciprocating said raceblock in theraceway.

4. In a buttonhole-sewing machine having stitch-forming mechanismsubstantially as specified and having a main driving-shaft O, thecombination of a race-frame as F having a curved raceway F and adaptedto move longitudinally'on the machine-fra me and substantially in theplane of the movement of the race-block as specified, with mechanism forso reciprocating the race-frame longitudinally, a race-block adapted tomove in the curved raceway, a counter-shaft N driven from shaft 0, a camas E actuated by said counter-shaft and means as described whereby saidcam imparts reciprocating movement to the raceblock.

5. In a buttonhole-sewing machine having a driving-shaft as O adriving-pulley as C clutch mechanism adapted to connect and disconnectthe shaft and pulley anda sliding plate M, the combination with saidplate of a friction-pin as K having a spring as K whereby it is pressedagainst the plate, a pinretracting device as cam K and connectionsbetween the pin-retractin g device and clutchactuating mechanism wherebythe pin is al- 7. In a buttonhole-sewing machine having a sliding plateM, the combination with an adj Listing-screw as H of an outer latch-stopH movable in a direction transverse to the axis of the ad j usting-screwby which it is supported and found to yield to an outward movement ofthe sliding plate, a fixed stop II securedto the adj usting-screw and astop projection M extending down from plate M to engage stops H l-I asspecified.

8. In a buttonhole-sewing machine having a sliding plate M, thecombination with an adjusting-screw as H of an outer latch-stop I-Imovable in a direction transverse to the axis of the adjusting-screw bywhich it is supported and formed to yield to an outward movement of thesliding plate, a fixed stop II also secured to the adjusting-screw, astop projection M extending down from plate lWI toengage stops 1191-1 asspecified, and mech; anism for withdrawing and locking stop 11' out ofthe path of projection M actuated by r the starting mechanism of themachine.

9. In a buttonhole-sewing machine having IIO a driving-shaft anddriving-pulley and a sition to engage the clutch when theadjusting-screw is in normal position and to release 6 states said plateand permit the clutch to open when the adjusting-screw is depressed.

10. In a buttonhole-sewing machine hav ing a driving-shaft anddriving-pulley and a clutch for engaging and disengaging said shaft andpulley, a sliding plate as (l moving in one direction or the other asthe clutch is engaged or disengaged, a spring as J 2 tend.- ing todisengage the clutch and to move plate Gr toward the adj Listing-screw,an adjustingscrew II, stops as II II connected thereto, the stop 11'being a latch having a movement at right angles to the adjusting screw,a spring as ll tending to hold the adjustingserew II in its outer normalposition, a stop as H secured to the adjusting-screw and arranged toengage and hold the plate G in position to engage the clutch when theadjusting-screw is in normal position and to release said plate andpermit the clutch to open when the adjusting-screw is depressed, a rod Hattached to the end of the latch-stop II and engaged in a slot G9 ofplate Gr said slot being formed and placed as described so that amovement of plate G to engage the clutch will draw back the latch whilegiving room to draw back the latch when the plate is in its otherposition.

11. In a buttonhole-sewing machine a main shaft 0 having adriving-pulley C journaled on its end in combination with africtionclutch whereby the shaft and pulley are coupled and of whichclutch mechanism the arm C pivoted to and revolving with the shaft is apart, said arm being normally pressed out by a spring as C to engage theclutch, a shaft J free to oscillate in fixed bearings, a cam-arm Jsecured to said shaft and adapted in one position on said shaft toengage the pivoted clutch-arm C and cause it to move away from thepulley while in the other position of said shaft it is moved out so asnot to engage the arm G a spring-buffer J 8 also secured to shaft J andthrown into and out of position to e11- gage the arm (J by the movementsof said shaft and mechanism for moving shaft J to start and stop themachine.

12. In abuttonhole-sewing machine amain shaft O having a driving-pulleyC journaled on its end in combination with a frictionclutch whereby theshaft and pulley are coupled and of which clutch mechanism the arm 0pivoted to and revolving with the shaft is a part, said arm beingnormally pressed out by a spring as C to engage the clutch, a shaft Jfree to oscillate in fixed bearings a cam-arm J 9 secured to said shaftand adapted in one position on said shaft to engage the pivotedclutch-arm O and cause it to move away from the pulley while in theother position of said shaft it is moved out so as not to engage the arm0 said arm J having a depression J near its base to engage and hold thearm G a spring-buffer J 8 also secured to shaft J and thrown into andout of position to engage the arm C by the movements of said shaft andmechanism for moving shaft J to start and stop the machine.

13. In a buttonhole-sewing machine having an adj usting-screw II withstops H 11 secured thereto a slide M, a friction-pin K arranged to pressagainst the said slide and a clutch adapted to couple and uncouple theshaft and driving-pulley, the combination with the sliding plate G thecam K and lever K K actuating said cam, the clutch-actuatin g shaft Jand its lever-arm J 3 with the T-shaped lever I I 1 whereby said partsare moved simultaneously.

14. In a buttonhole-sewing machine the combination with slide M of arack M and a link M said link being pivotally connected at one end tothe slide and at the other to the rack.

15. In a buttonhole-sewing machine the combination of the slide M ofarack M anda link M said link being pivotally connected at one end tothe slide and at the other to the rack and lying in a line forming anacute angle to the normal operative position of said rack.

CHRISTIAN FREDERICK. RAYMOND L. PLUMLEY. Witnesses:

EDWARD G. CooK, GEO. R. IIoFFEcKER.

